<?php
namespace Library;

/*!
 * ubb2html support for php
 * @requires xhEditor
 *
 * @author Yanis.Wang<yanis.wang@gmail.com>
 * @site http://xheditor.com/
 * @licence LGPL(http://www.opensource.org/licenses/lgpl-license.php)
 *
 * @Version: 0.9.10 (build 110801)
 */
class UBB{
    private static $emotPath='../xheditor_emot/';//表情根路径
    private static $cnum=0;
    private static $arrcode=array();
    public function ubb2html($sUBB){
        $sHtml=$sUBB;
        $sHtml=preg_replace_callback('/\[code\s*(?:=\s*((?:(?!")[\s\S])+?)(?:"[\s\S]*?)?)?\]([\s\S]*?)\[\/code\]/i',array(__CLASS__,'saveCodeArea'),$sHtml);
        $sHtml=preg_replace("/&/",'&amp;',$sHtml);
        $sHtml=preg_replace("/</",'&lt;',$sHtml);
        $sHtml=preg_replace("/>/",'&gt;',$sHtml);
        $sHtml=preg_replace("/\r?\n/",'<br />',$sHtml);
        $sHtml=preg_replace("/\[(\/?)(b|u|i|s|sup|sub)\]/i",'<$1$2>',$sHtml);
        $sHtml=preg_replace('/\[color\s*=\s*([^\]"]+?)(?:"[^\]]*?)?\s*\]/i','<span style="color:$1;">',$sHtml);
        $sHtml=preg_replace_callback('/\[size\s*=\s*([^\]"]+?)(?:"[^\]]*?)?\s*\]/i',array(__CLASS__,'getSizeName'),$sHtml);
        $sHtml=preg_replace('/\[font\s*=\s*([^\]"]+?)(?:"[^\]]*?)?\s*\]/i','<span style="font-family:$1;">',$sHtml);
        $sHtml=preg_replace('/\[back\s*=\s*([^\]"]+?)(?:"[^\]]*?)?\s*\]/i','<span style="background-color:$1;">',$sHtml);
        $sHtml=preg_replace("/\[\/(color|size|font|back)\]/i",'</span>',$sHtml);
        for($i=0;$i<3;$i++){
            $sHtml=preg_replace('/\[align\s*=\s*([^\]"]+?)(?:"[^\]]*?)?\s*\](((?!\[align(?:\s+[^\]]+)?\])[\s\S])*?)\[\/align\]/','<p align="$1">$2</p>',$sHtml);
        }
        $sHtml=preg_replace('/\[img\]\s*(((?!")[\s\S])+?)(?:"[\s\S]*?)?\s*\[\/img\]/i','<img src="$1" alt="" />',$sHtml);
        $sHtml=preg_replace_callback('/\[img\s*=([^,\]]*)(?:\s*,\s*(\d*%?)\s*,\s*(\d*%?)\s*)?(?:,?\s*(\w+))?\s*\]\s*(((?!")[\s\S])+?)(?:"[\s\S]*)?\s*\[\/img\]/i',array(__CLASS__,'getImg'),$sHtml);
        $sHtml=preg_replace_callback('/\[emot\s*=\s*([^\]"]+?)(?:"[^\]]*?)?\s*\/\]/i',array(__CLASS__,'getEmot'),$sHtml);
        $sHtml=preg_replace('/\[url\]\s*(((?!")[\s\S])*?)(?:"[\s\S]*?)?\s*\[\/url\]/i','<a href="$1">$1</a>',$sHtml);
        $sHtml=preg_replace('/\[url\s*=\s*([^\]"]+?)(?:"[^\]]*?)?\s*\]\s*([\s\S]*?)\s*\[\/url\]/i','<a href="$1">$2</a>',$sHtml);
        $sHtml=preg_replace('/\[email\]\s*(((?!")[\s\S])+?)(?:"[\s\S]*?)?\s*\[\/email\]/i','<a href="mailto:$1">$1</a>',$sHtml);
        $sHtml=preg_replace('/\[email\s*=\s*([^\]"]+?)(?:"[^\]]*?)?\s*\]\s*([\s\S]+?)\s*\[\/email\]/i','<a href="mailto:$1">$2</a>',$sHtml);
        $sHtml=preg_replace("/\[quote\]/i",'<blockquote>',$sHtml);
        $sHtml=preg_replace("/\[\/quote\]/i",'</blockquote>',$sHtml);
        $sHtml=preg_replace_callback('/\[flash\s*(?:=\s*(\d+)\s*,\s*(\d+)\s*)?\]\s*(((?!")[\s\S])+?)(?:"[\s\S]*?)?\s*\[\/flash\]/i',array(__CLASS__,'getFlash'),$sHtml);
        $sHtml=preg_replace_callback('/\[media\s*(?:=\s*(\d+)\s*,\s*(\d+)\s*(?:,\s*(\d+)\s*)?)?\]\s*(((?!")[\s\S])+?)(?:"[\s\S]*?)?\s*\[\/media\]/i',array(__CLASS__,'getMedia'),$sHtml);
        $sHtml=preg_replace_callback('/\[table\s*(?:=(\d{1,4}%?)\s*(?:,\s*([^\]"]+)(?:"[^\]]*?)?)?)?\s*\]/i',array(__CLASS__,'getTable'),$sHtml);
        $sHtml=preg_replace_callback('/\[tr\s*(?:=(\s*[^\]"]+))?(?:"[^\]]*?)?\s*\]/i',array(__CLASS__,'getTR'),$sHtml);
        $sHtml=preg_replace_callback("/\[td\s*(?:=\s*(\d{1,2})\s*,\s*(\d{1,2})\s*(?:,\s*(\d{1,4}%?))?)?\s*\]/i",array(__CLASS__,'getTD'),$sHtml);
        $sHtml=preg_replace("/\[\/(table|tr|td)\]/i",'</$1>',$sHtml);
        $sHtml=preg_replace("/\[\*\]((?:(?!\[\*\]|\[\/list\]|\[list\s*(?:=[^\]]+)?\])[\s\S])+)/i",'<li>$1</li>',$sHtml);
        $sHtml=preg_replace_callback('/\[list\s*(?:=\s*([^\]"]+))?(?:"[^\]]*?)?\s*\]/i',array(__CLASS__,'getUL'),$sHtml);
        $sHtml=preg_replace("/\[\/list\]/i",'</ul>',$sHtml);
        $sHtml=preg_replace("/\[hr\/\]/i",'<hr />',$sHtml);
        for($i=1;$i<=self::$cnum;$i++){
            $sHtml=str_replace("[\tubbcodeplace_".$i."\t]", self::$arrcode[$i],$sHtml);
        }
        $sHtml=preg_replace_callback('/(^|<\/?\w+(?:\s+[^>]*?)?>)([^<$]+)/i',array(__CLASS__,'fixText'),$sHtml);
        return $sHtml;
    }
    public static function saveCodeArea($match){
        self::$cnum++;self::$arrcode[self::$cnum]=$match[0];
        return "[\tubbcodeplace_".self::$cnum."\t]";
    }
    public static function getSizeName($match){
        $arrSize=array('10px','13px','16px','18px','24px','32px','48px');
        if(preg_match("/^\d+$/",$match[1]))$match[1]=$arrSize[$match[1]-1];
        return '<span style="font-size:'.$match[1].';">';
    }
    public static function getImg($match){
        $alt=$match[1];$p1=$match[2];$p2=$match[3];$p3=$match[4];$src=$match[5];
        $a=$p3?$p3:(!is_numeric($p1)?$p1:'');
        return '<img src="'.$src.'" alt="'.$alt.'"'.(is_numeric($p1)?' width="'.$p1.'"':'').(is_numeric($p2)?' height="'.$p2.'"':'').($a?' align="'.$a.'"':'').' />';
    }
    public static function getEmot($match){
        $arr=split(',',$match[1]);
        if(!isset($arr[1])){$arr[1]=$arr[0];$arr[0]='default';}
        $path=self::$emotPath.$arr[0].'/'.$arr[1].'.gif';
        return '<img src="'.$path.'" alt="'.$arr[1].'" />';
    }
    public static function getFlash($match){
        $w=$match[1];$h=$match[2];$url=$match[3];
        if(!$w)$w=480;if(!$h)$h=400;
        return '<embed type="application/x-shockwave-flash" src="'.$url.'" wmode="opaque" quality="high" bgcolor="#ffffff" menu="false" play="true" loop="true" width="'.$w.'" height="'.$h.'" />';
    }
    public static function getMedia($match){
        $w=$match[1];$h=$match[2];$play=$match[3];$url=$match[4];
        if(!$w)$w=480;if(!$h)$h=400;
        return '<embed type="application/x-mplayer2" src="'.$url.'" enablecontextmenu="false" autostart="'.($play=='1'?'true':'false').'" width="'.$w.'" height="'.$h.'" />';
    }
    public static function getTable($match){
        return '<table'.(isset($match[1])?' width="'.$match[1].'"':'').(isset($match[2])?' bgcolor="'.$match[2].'"':'').'>';
    }
    public static function getTR($match){
        return '<tr'.(isset($match[1])?' bgcolor="'.$match[1].'"':'').'>';
    }
    public static function getTD($match){
        $col=isset($match[1])?$match[1]:0;$row=isset($match[2])?$match[2]:0;$w=isset($match[3])?$match[3]:null;
        return '<td'.($col>1?' colspan="'.$col.'"':'').($row>1?' rowspan="'.$row.'"':'').($w?' width="'.$w.'"':'').'>';
    }
    public static function getUL($match){
        $str='<ul';
        if(isset($match[1]))$str.=' type="'.$match[1].'"';
        return $str.'>';
    }
    public static function fixText($match){
        $text=$match[2];
        $text=preg_replace("/\t/",'&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;',$text);
        $text=preg_replace("/ /",'&nbsp;',$text);
        return $match[1].$text;
    }
}
